Coil-former.



No. 834,480l

J. W. LU

PATENTBD 00T. so, 1906. NDsKoG.

COIL FORMER.

APPLICATION FILED AB.. 25, 1904.

witnesses: CI-

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LAI-O" vqttfynatingcurrent machines and 4To all whom it may concern:

" 'UNITED ,STATES PATENT OFFICE.

J ULIUS W. LUNDSKOG, OF LYNN, MASSACHUSETTS, ASSIGNORTOGEN- l ERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

colL- FQRMEl-a.

specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed larok 26,1904. Serial-No. 199,921.

Be it known that I,.JULrUs W. LUNDsKoo, a citizen tof the .UnitedfStatea' residing at Lynn, county :of Essex, State of Massachusetts, have invented certain new and useful Im rovements in Coil-Formers, of which the fol owing is aspecification.-

My invention relates to formers forjthe coils of dynamo-electric machines, and refers particularly to formers adapted to produce coils for a type of winding used in many alterknown as a distributed Winding.

The object of my invention is to provide a former which shall enable such windings' to be Wound continuously, thereby obviating the necessityof makingtheend connections Which must be' made when are formed of individual coils.

In the accompanying dra Figure i shows a perspective View `of a ormer con- `structed 1n accordance with my invention,

the coils being shown wound thereon. Fig. 2 is a 1an view of the same Without the coils, and 1g.ff3 is across-sectional elevation of the same on line 3 3 ofFig. 2.

`In the drawings, Arepresents a former com- I posed ofa p'lurahtp'lf layers or slabs a. Each other side an inverted terrace.

slab a is of the ensions desired for the inner dimensions of a coil. -The slabs are placed one above another, and each is-displaced laterally from the one beneath it, so-

as to format one side a lterrace andl at .the I have shown each slab formed with a raised strip a along one edge to furnish a lgage for the desired dis-x of the strip a being placement, the Widt p eqlual to the desired distance between'coils. T e slabs are fastened to ether b the' screws b, and a hole C is bored trough t e center of the former to allow it tobe rotated on a shaft for convenience -in winding. D is a clamping-nut, by means of which the end of l number of sl'abs is Aequal to the number of the wire may be fastened'at starting'. The Wire is given one or more turns around each Slab, as shown in Fig. 1 vaccording to thev .number of turns desired for each coil. The

continuous coils desired. The former shown is thus suited for aiive.coil phase distributed windin number of turns per coil. f

former a continuous Winding may be expeof. any desired ditiously made and the expense ofy making end connections avoided.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

1. A coil-former formed with its opposite ends parallel-inclined and arranged in steps.

2. A coil-former composed of a superimposed slabs laterally disp aced from each other.

3. A coil-former for a distributed windin composed 'of a plurality of superimpose slabs laterally displaced from each other by a 6 5 distance equal to the desired distance tween coils. Y' y 4. A coil-former for distributed lwindin formed with its op osite ends parallel-inclined, vand arranged) each step being equal to the desired distance between coils.

5. A coil-former formed with its opposite ends parallel-inclined and arranged, in steps, said former beingadapted to be rotated.

6. A coil-former composed of a lurality of superimposed slabs laterally dis laced from each other, said former being a apted to be rotated.

\ 7. A coil-former composed of a plurality of 8o superimposed slabs laterally disp aced from. each' other, each of said slabs having a raised portion to serve as a gage for the desired disv placement.

8. A coil-former composed of a superimposed slabs laterally disp aced from eachother, each of said slabs having a raised ortion along one edge of a wl'dth equal to the gesireddistance between coils.

In witness whereof I have hereunto set my 9o hand this 21st day of March, 1904.

IJULIUS. W. LUNDSKOG.

f `Witnessesi DUGALD MCK. McKrLLoP, HENRY S. BALDWIN.

per pole per 5o y the use of this` f lurality of 6o in steps, the Width of 7o lurality of .85 

